Use the Given Information to Find the Minimum Sample Size

Multiple Choice

Use the given information to find the minimum sample size required to estimate an unknown population mean µ
-How many business students must be randomly selected to estimate the mean monthly earnings of business students at one college? We want 95% confidence that the sample mean is within $131 of the population mean, and the population standard deviation is known to be $529.

A) 44
B) 55
C) 63
D) 89